Gum-tape printer



March 2 1926. 1,575,303

H. C. WOLFE GUM TAPE PRINTER Original Filed April 21, 1923 INVENTOR l/YM/IM C. WOLFE 31 7 ATTORM'YS Patented Mar. 2, 19.25%.

UNITED STATES 1,575,303 PATENT orrics.

HYMAN C. W'OLFE, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO PRIN'IAPE MA CHINE CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GUM-TAPE rnrnrnn.

Application filed April 21, 1923, Serial No. 633,862. Renewed January 28, 1926.

To all whom. it may concern Be it known that I, Hymn-m C. VOLFE, a subject ofthc King of Great Britain, and resident of the city of Montreal, in the Prov ince of Quebec and Dominion of Canada,

have invented certain new .and useful 1mprovements in Gum-Tape Printers, of which the following is a full, clear, and exact description.

This invention relates to improvements in gum tape printers and has as its object the provision of a simple, automatic printing, inking and moistening device for paper rolls for wrapping, sealing or the like.

In devices of this class at the present time, it is customary to have the tape printed before putting it into the machine and the cost of this printing is considerable, compared with the cost of plain gummed tape. Trouble'has also been experienced in these devices through the tape slackening and, when this occurs, the tape is liable to crack and twist, thus interfering with the smooth working of the apparatus. a

In my invention, I provide a gum tape holder which is adjustable to all widths of tape or paper and which has a self inking and printing device attachment. I also pro-' vide a spring attachment to keep the tape tautand a self-damping arrangemcntfor rszoistening the gumm-ed side of the tapebcfore using, and this operation can only be accomplished under slight pressure, thus ensuring a tape that is easily handled. In the accompanying drawings Fig. 1 is a side elevation of the device. Fig. 2 is an end elevation of the tape holding device.

Fig. 3 is an end elevation of .the printing 4; arm.

Fig. 4 is an end elevation of the damping roller and tank.

Fig. 5 is a plan view of the apparatus. Fig. 6 is an enlarged view of the roller 45 looking arrangement attached to the pivoted printing arm.

Fig. 7 is a sectional plan view taken on the line 77, Figure 6.

On a base 11 is mounted an angular plate 50 bracket 12, which is attached to the said "bracket by bolts or screws. Riveted to the vertical member of the bracket 12 is a spindle 13 for supporting a gummed tape roll 14 Two screws 15 and 16 are also riveted as to said bra k 15% to provide adjustment and supports for two guides 17 and 18,

which are drilled to suit the spindle13and the screws 15 and 16. Adjustment for widths of tape is made on the screws 15 and 16 by altering the position of a thumb nut 19 and a nut 20 on each screw and between which are mounted the guides 17 and 18. On the top of the bracket 12 and attached thereto by screws is a block 21 made inte-.

gral with the forked bracket 22, the end 23 of which is adapted to support the printing apparatus hereinafter mentioned. A printing roller 24 mounted on a pin 25 and between the sides of a supporting link 26,

which is hung from the bracket 22, is provided for printing 011 the tape 14 any desired instruction or design. The link 26 is held in position by the'screws 28 and 29.

Holes 80 and 31 are provided to adjust the I printing roller to any desired height. The. pin 25 is placed in the horizontal slots; 32

out in the supporting link 26. To keep the printing roller central with the gum tape, I provide the guides 34 attached to the supporting link 26 by the set screws 35. For inking the printed roller, circular ink pads 36 and 37, are placed between the sides of the links 26 and are mounted on the pins .38 and 39 respectively, which revolve in the vertical slots and 41 cut in said. links. To provide an easy means for detaching the inking rollers, the slots 40 and 41 communicute with horizontal slots 40 and 41, so

that the said rollers may be pulled clear of the supporting link without interfering with the pins 38 and 39 which may be se cured. to the inking rollers. Locking guides 33 slidably mounted on the printing roller support are provided to lock the inking and printing rollers in their respective working slots 40, 41 and 32. The guides are provided with vertical slots 40 and 41, adapted to coincide with the slots 40 and 41 in the supporting links 26 to position the ink ing rollers, and vertical slots 32 which look the printing roller pin 25 in position. The upper end of the slots 32 also limits the downward movement of the guides 33 by engaging with the pin 25. I also provide horizontal communicating slots 40 and 41 in the guides 83, which are adapted to coincide with the horizontal slots 40 and 41 in ice 7 ell) edges 00 of the guides are so positioned that w hen the guides 33 are in the unlocked position said edges are clear of the horizontal,

l3 keep a constant pressure on the pin 39,,

which is attached to the circular ink pad 37. This pressure is transferred to the circular ink pad 36 directly below it and is thus kept in constant pressure against the circumferonce of the printing roller 2%. The pin 43 also acts as a hinge pin for a: guard 44, which covers the circular ink pads 36 and 37 and also the printing roller 24 on one side, and a guard 45 covering the circular ink pads 36 and 37 only on the other side. To hold the guards in the closed position as shown in Figures land 6, a spiral torsion spring 46 is wound around the pin 43, so that the ends of the spring engage With the top of the guards and exert apressure thereon. The spring is so positioned that when the guards are raised, the pressure on them is increased thereby ensuring the return of the guards to the closed position. To keep the printing roller against the guinmcd tape with pressure enough to ensure the gumined paper being printed, no matter what diameter itis, I provide the spiral torsion springs-47' wound round the set screws 48. which are in turn screwed into the forked bracket 22. One end of the spring engages with the bracket 22 and the other end engages with the pin 25, keeping the printing roller pressed against the gum tape roll 14. At one end of the base-11 is provided a cast recess to receive a tank 49, in which a roller 50'is mounted on a pin 51 and revolving in a bracket cast integral with the tank. I also provide revolving guide rollers 52 and 53 for guiding the tape 56. A cutter strip and guard 54 is also provided and fixed to the base 11 by the screws 55.

The operation of the apparatus is as follows When the gumined tape 56 from the roller 14. is pulled, the roller 1% revolves and in turn revolves the printing roller, 24. The

ink pads ink the roller 24: which transfers upon opposite sides'of the tape roll. 2. In a tape printing machine, the combi nation of a tape roll holder, a printing mechanism lncluding a printing roller and ineansfor engaging said roller With aroll of tape mounted in said holder, and means. carried by the roll holder for adjusting the roll to center the same with respect to the printing roller.

3. In a tape printing machine, the combination of a tape roller holder, a printing.

frame suspended from the top of the holder and including a pair of'spaced side bars, each bar being provided adjacent its lower end with a horizontal slot extending in wardlyfrom one edge of the bar to receive the shaft of a printing roll, each bar being further provided with a pair of upper vertical slots communicating with inclined slots leadingto one edge of the bar and adapted to accommodate the shafts of a pair of inking rolls, and means for locking the shafts of said'rolls in said slots comprising a plate slidable on each bar and provlded with a pair of upper slots corresponding to the upper slots'of said bar and with a lower vertical slot adapted to intersect the lower horiz-ontal slot of the bar.

In witnesswhereof, I have hereunto set my hand;

HYMAN o. wonrn 

